Hey, I've been having precision issues with our ICP-OES 5800 with an AVS 6. The RSD would have been lower than 1 but now it can be over 100%, the first reading is always much lower than the subsequent two. I've tried increasing the stabilization time and other conditions but I can't seem to get it right. The conditions I was using before worked perfectly before and I'm not sure what the problem could be, but I'm assuming there's something wrong somewhere in the sample introductory system. Any help would be much appreciated!